I switched from the Nextel 7510 to Tmobile and have the new 7100t unit. I like it but am having problems forwarding my AIM account to the phone. Every time I click Submit on the AIM page it indicates that a code is being sent to my phone. It never arrives. Is there something I need to activate?

I have the AIM client on the phone and use it frequently but don't want to keep it signed in on the phone all the time.

I remember reading a few months ago that their system still had not adjusted properly to porting numbers. Meaning if you took your Nextel phone number with you to T-Mobile, their server still thinks you are with Nextel and will have problems sending you the message. But why not use the build in AIM client in the 7100t?? That one uses text messages as well, but in a much nicer format and you will be able to see your buddy list as well.

I too have a 7100t with T-mobile service (like I could have any other with the T in my model number, but...) and my AIM didn't work (the OZ version that comes with the phone) until I upgraded the to BB V4.0. The download is available from your "My T-Mobile login" off the T-mobile main WWW page.